Kamis, 10 Januari 2013

Computer History and its Development

Since immemorial, the data processing has been done by humans. Humans also find mechanical appliances and electronics to help human beings in the calculation and processing of data in order to obtain faster results. Computers that we see today is a long evolution of human inventions since time immemorial in the form of mechanical or electronic devices.


Today computers and supporting devices have been included in every aspect of life and work. Existing computers now have a greater ability than ordinary mathematical calculations. Among them is a computer system capable of reading gauze supermarket shopping item code, which handles millions of telephone calls and communications, computer networks and the Internet that connect different parts of the world.

Computer History by period are :
  • Calculate Traditional Tools and Mechanical Calculator
  • First Generation Computers
  • Second Generation Computers
  • Third Generation Computers 
  • Fourth Generation Computers
  • Fifth Generation Computer 

 
 

1. First Generation Computers (1946­ – 1959)

With the onset of World War II, the countries involved in the war sought to develop to exploit their potential strategic importance a computer. 
This increased funding for computer development and accelerate technical progress.
(1) Colassus
(2) Mark I
(3) ENIAC
(4) EDVAC
(5) UNIVAC I

Characteristics of first generation computers are:
  • The use of vacuum tube (which makes the computer at that time are very large)
  • The magnetic cylinders for the storage of data.
  • Operating instructions are made specifically for a particular task.
  • Each computer has a different kodebiner program called "machine language" (machine language). This causes the computer is difficult to be programmed and the speed limit. 

2. Second Generation Computers (1959­ – 1964)

Stretch dan LARC
The first machine that utilizes this new technology is the supercomputer. IBM makes supercomputer named Stretch, and Sprery Rand makes a computer named LARC. These computers are developed for atomic energy laboratories, could handle large amounts of data, a capability that is needed by atomic scientists. The machine is very expensive and tend to be too complex for business computing needs, thereby limiting. 
There are only two LARC ever installed and used: one at the Lawrence Radiation Labs in Livermore, California, and the other at the U.S. Navy Research and Development Center in Washington DC. The second generation of computers replacing the machine language to assembly language. Assembly language is a language that uses abbreviations to replace the binary code.

In the early 1960s, computers began to appear successful second generation in the business, in universities and in government. This second generation computer is a computer which used transistors. They also have the components that can be associated with the computer at this time: printers, storage, disk, memory, operating system, and programs.

The characteristics of the computer on the second generation:
  • The use of transistors that are smaller in size
  • The development of memory intimagnetik second generation computers smaller, faster, more reliable, and more energy efficient than its predecessor
  • Replacement of the language into machine language Asembly
  • Emerging programming languages ​​COBOL and FORTRAN

3. Third Generation Computers (1964­ – 1970)

Although the transistors in many respects the vacuum tube, but transistors generate substantial heat, which could potentially damage the internal bagianbagian computer. Quartz Rock to eliminate this problem. Jack Kilby, an engineer at Texas Instruments, developed the integrated circuit in 1958. IC combined three electronic components onto a small silicon disc, made ​​ from quartz.

Scientists later managed to fit more the components into a single chip, called a semiconductor. As a result, computers became ever smaller as more components were squeezed onto the chip. Other third-generation development is the use of the operating system (operating system) which allows the engine to run many different programs at once with a central program that monitored and coordinated the computer's memory.

The characteristics of the third-generation computers :
  • The use of IC (Intregrated Circuit)
  • The size of the computer is smaller
  • The discovery of Operating Systems



4. Fifth Generation Computer (1979 - present )


After IC, the development becomes more apparent: shrink the size of circuits and electrical components. Large Scale Integration (LSI) could fit hundreds of components onto one chip. In the 1980's, the Very Large Scale Integration (VLSI) contains thousands of components on a single chip. UltraLarge Scale Integration (ULSI) increased that number into the millions. The ability to install so many components in a chip that berukurang half coin prices eased and the size of the computer. It also increased power, efficiency and reliability.

Intel 4004 chip made ​​in 1971 to bring progress to the IC by putting all the components of a computer (central processing unit, memory, and control input / output) in a very small chip. Previously, the IC is made to do a certain task specific. Now, a microprocessor could be manufactured and then programmed to meet all demands. Not long after, everyday household items such as microwave ovens, televisions, and automobiles with electronic fuel injection equipped with microprocessors.

Such developments allow those people used to use a regular computer. The computer is no longer a dominance of large corporations or government agencies. In pertengahantahun 1970s, computer assemblers offer their computer products to the general public. These computers, called minicomputers, sold with a software package that is easy to use by the layman. The most popular software at the time was word processing and spreadsheet programs. In the early 1980s, such as the Atari 2600 video game consumer interest in home computers are more sophisticated and can be programmed.

In 1981, IBM introduced the use of Personal Computer (PC) for use in homes, offices, and schools. The number of PCs in use jumped from 2 million units in 1981 to 5.5 million units in 1982. Ten years later, 65 million PCs in use. Computers continued their trend toward a smaller size, from computers that are on the table (desktop computer) to a computer that can be inserted into the bag (laptop), or even a computer that can be held (palmtop).

IBM PC to compete with Apple's Macintosh line, introduced in. Apple Macintosh became famous for popularizing the computer graphics system, while his rival was still using a text-based computer. Macintosh also popularized the use of mouse devices.

At the present time, we know the way to the use of IBM compatible CPU: IBM PC/486, Pentium, Pentium II, Pentium III, Pentium IV (series of CPUs made ​​by Intel). Also we know AMD k6, Athlon, etc.. This is all included in the class of fourth generation computers. Along with the proliferation of computer usage in the workplace, means a new way to harness their potential developed. Along with the increased strength of a smaller computers can be connected together in a network to share a memory, software, information, and also to be able to communicate with each other. The computer network allows a single computer to establish electronic collaboration to complete a task process. By using direct cabling (also called a local area network, LAN), or telephone cable, the network can become very large.

The characteristics of the computer on the fourth generation:
  • The use of LSI, VLSI, ULSI
  • The use of microprocessors

Many advances in the field of computer design and technology increasingly allows the creation of the fifth generation computer. Two such engineering advances are parallel processing capabilities, which will replace the model of von Neumann. Von Neumann model will be replaced with a system that is able to coordinate many CPUs to work as one. Another advance is superconductor technology, which allows the flow of electrically without any obstacles, which will accelerate the speed of information.

Japan is a country well known in the jargon of socialization and the fifth generation computer project. Institutions ICOT (Institute for new Computer Technology) was also set up to make it happen. Many news stating that the project has failed, but some other information that the success of the fifth generation computer project will bring new changes in the world of computerized paradigm. We wait for which information is more valid and fruitful.

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